sed and awk Pocket Reference: Text Processing with Regular Expressions, Edition 2

bash Cookbook: Solutions and Examples for bash Users, Edition 2

vi Editor Pocket Reference

Learning the bash Shell: Unix Shell Programming, Edition 3

GDB Pocket Reference: Debugging Quickly & Painlessly with GDB

SSH, The Secure Shell: The Definitive Guide: The Definitive Guide, Edition 2

Effective awk Programming: Universal Text Processing and Pattern Matching, Edition 4

Linux Basics for Hackers: Getting Started with Networking, Scripting, and Security in Kali

vi and Vim Editors Pocket Reference: Support for every text editing task, Edition 2

Penetration Testing with Raspberry Pi

Unix in a Nutshell: A Desktop Quick Reference - Covers GNU/Linux, Mac OS X,and Solaris, Edition 4

The Design and Implementation of the FreeBSD Operating System: Edition 2

Linux Kernel Development: Edition 3

Classic Shell Scripting: Hidden Commands that Unlock the Power of Unix

How Linux Works, 3rd Edition: What Every Superuser Should Know

Learning the vi and Vim Editors: Power and Agility Beyond Just Text Editing, Edition 8

sed & awk: UNIX Power Tools, Edition 2

Mastering Python

Learning the Korn Shell: Unix Programming, Edition 2